You can get the internal LEDs from here (6 LED light model):

https://www.superbrightleds.com/sear...20led%20bulbs/

For other bulb configurations:
http://www.superbrightleds.com/cgi-b...ini-wedge.html
Look for the 194/168 replacement bulbs.

For new twist sockets:
https://www.superbrightleds.com/sear...bulbs/T10S-TW/
Use the T10S-TW sockets (round).

Quantity: 2
Product: WLED-x6 LED bulb $ 2.79 (each)
Options: Red WLED-R6

Quantity: 2
Product: Twist-Lock T10S-TW $1.19 (each)